Internally, the hard, sleek finish of BN graces many in the critical components including the magazine tube, gasoline piston, fuel ring, hammer and sear. Ease of cleaning is usually a secondary benefit of the coating. Getting it over the parts in the 940’s redesigned fuel system makes certain reliability. Image https://mossberg-940-jm-pro-canad25257.arwebo.com/52299699/the-definitive-guide-to-mossberg-590-a1-stock